py4j.commands

Class DirCommand

java.lang.Object

py4j.commands.AbstractCommand

py4j.commands.DirCommand

All Implemented Interfaces:

Command

public class DirCommand
extends AbstractCommand

Field Summary

Fields

Modifier and Type	Field and Description
static String	DIR_COMMAND_NAME
static String	DIR_FIELDS_SUBCOMMAND_NAME
static String	DIR_JVMVIEW_SUBCOMMAND_NAME
static String	DIR_METHODS_SUBCOMMAND_NAME
static String	DIR_STATIC_SUBCOMMAND_NAME

Fields inherited from class py4j.commands.AbstractCommand

commandName, connection, gateway

Constructor Summary

Constructors

Constructor and Description
DirCommand()

Method Summary

Modifier and Type	Method and Description
void	execute(String commandName, BufferedReader reader, BufferedWriter writer)
void	init(Gateway gateway, Py4JServerConnection connection) Called when a command instance is created and assigned to a connection.

Methods inherited from class py4j.commands.AbstractCommand

getArguments, getCommandName, getStringArguments, invokeMethod

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DIR_COMMAND_NAME

public static final String DIR_COMMAND_NAME

See Also:

Constant Field Values

DIR_FIELDS_SUBCOMMAND_NAME

public static final String DIR_FIELDS_SUBCOMMAND_NAME

See Also:

Constant Field Values

DIR_METHODS_SUBCOMMAND_NAME

public static final String DIR_METHODS_SUBCOMMAND_NAME

See Also:

Constant Field Values

DIR_STATIC_SUBCOMMAND_NAME

public static final String DIR_STATIC_SUBCOMMAND_NAME

See Also:

Constant Field Values

DIR_JVMVIEW_SUBCOMMAND_NAME

public static final String DIR_JVMVIEW_SUBCOMMAND_NAME

See Also:

Constant Field Values

Constructor Detail

DirCommand

public DirCommand()

Method Detail

execute

public void execute(String commandName,
                    BufferedReader reader,
                    BufferedWriter writer)
             throws Py4JException,
                    IOException

Specified by:

execute in interface Command

Specified by:

execute in class AbstractCommand

Parameters:

commandName - The command name that was extracted of the command.

reader - The reader from which to read the command parts. Each command part are expected to be on a separate line and readable through BufferedReader.readLine().

writer - The writer to which the return value should be written.

Throws:

Py4JException - If an error occurs while executing the command. All exceptions except IOException caused by the reader and the writer should be wrapper in a Py4JException instance.

IOException - If an error occurs while using the reader or the writer.

init

public void init(Gateway gateway,
                 Py4JServerConnection connection)

Description copied from interface: Command

Called when a command instance is created and assigned to a connection.

Specified by:

init in interface Command

Overrides:

init in class AbstractCommand

connection - the Py4JServerConnection this socket is assigned to